package cloud.luyi.springcloud.filter;

import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Order;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.util.Date;

/**
 * @author 卢意
 * @create 2020-10-26 14:16
 */
@Component
@Slf4j
public class MyLogGatewayFilter implements GlobalFilter, Ordered {

	@Override
	public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
		log.info("********* come in MyLogGatewayFilter:  "+new Date() );
		String uname = exchange.getRequest().getQueryParams().getFirst("uname");
		if(uname==null){
			log.info("******* 用户名为null ,非法用户");
			exchange.getResponse().setStatusCode(HttpStatus.NOT_ACCEPTABLE);//设置响应信息
			return exchange.getResponse().setComplete(); // 退出
		}
		return chain.filter(exchange); // 去过滤连 交给后续的过滤器处理
	}

	@Override
	public int getOrder() {
		return 0; // 返回过滤器的执行顺序  越小优先级越高
	}
}
